Trento 9mm 16.5-inch 1:10 AR 1/2x36 Complete Upper Build Kit

Trento 9mm Upper

The Trento 9mm upper is a complete AR-15 9x19 upper assembly built for reliable 9mm performance. It pairs a 16.5-inch nitride-finished barrel with a billet aluminum receiver and 15-inch M-Lok handguard, delivering a balanced platform for 9mm shooting without requiring a complete rifle build.

Key Features

• 16.5-inch nitride-finished 4150 CrMoV barrel with 1:10 twist rate
• Billet aluminum upper receiver with Type III hard coat anodize
• 15-inch M-Lok handguard for accessory mounting
• 9mm flash hider A2 birdcage muzzle device
• Mil-spec M4 charging handle included
• 9mm nitride bolt carrier group with 8620 alloy steel construction
• 1/2x36 thread pitch compatibility

Perfect For

• 9mm AR-15 builds seeking a complete upper assembly
• Shooters wanting reliable 9x19 platform performance
• Budget-conscious builders avoiding separate component sourcing
• Home defense or range shooting configurations

Design Intent

This upper assembly combines proven 9x19 platform components into a ready-to-use configuration. The 16.5-inch barrel length balances velocity and handling for 9mm loads, while the billet aluminum receiver and nitride barrel finish provide durability for extended shooting sessions. The M-Lok handguard offers modern accessory compatibility without unnecessary weight.

Component Compatibility

The Trento upper uses standard AR-15 lower receiver compatibility with 9mm-specific bolt carrier geometry. The 1/2x36 muzzle device thread pitch is standard for 9mm AR platforms. Installation requires a compatible 9mm lower parts kit and magazine system designed for 9x19 feeding. Verify your lower receiver and magazine system support 9mm operation before assembly.

What You Need to Know

This is a complete upper assembly only. A lower receiver, lower parts kit, buffer system, and stock or brace are required to complete a functional firearm. The included bolt carrier group is optimized for 9mm cycling and must be paired with a 9mm-compatible lower. The nitride barrel and hard coat anodized receiver provide corrosion resistance for standard use, though regular cleaning extends component life. The flash hider reduces muzzle flash but does not suppress sound.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are included with this upper assembly. Lower receiver not included.